SOLUTION: Aryan runs at a speed of 40metre/minute. Rahul follows him after an interval of 5minutes and runs at a speed of 50metre/minute. Rahul's dog run at a speed of 60metre/minute and sta

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Question 774322: Aryan runs at a speed of 40metre/minute. Rahul follows him after an interval of 5minutes and runs at a speed of 50metre/minute. Rahul's dog run at a speed of 60metre/minute and start along with Rahul. The dog reaches Aryan and then come back to Rahul and continues to do so till Rahul reaches Aryan. What is the total distance covered by the dog?
Answer by solver91311(24713)   (Show Source): You can put this solution on YOUR website!


5 times 40 is 200 so A has a 200 meter head start. R runs 10 meter/minute faster so it takes him 20 minutes to catch up. The dog runs 60 meters per minute for 20 minutes, so the dog goes 1200 meters.

John

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